全文获取类型
收费全文 | 34626篇 |
免费 | 484篇 |
国内免费 | 21篇 |
专业分类
教育 | 24915篇 |
科学研究 | 3027篇 |
各国文化 | 298篇 |
体育 | 2770篇 |
综合类 | 18篇 |
文化理论 | 251篇 |
信息传播 | 3852篇 |
出版年
2022年 | 227篇 |
2021年 | 340篇 |
2020年 | 514篇 |
2019年 | 801篇 |
2018年 | 1117篇 |
2017年 | 1104篇 |
2016年 | 977篇 |
2015年 | 586篇 |
2014年 | 881篇 |
2013年 | 6647篇 |
2012年 | 885篇 |
2011年 | 959篇 |
2010年 | 655篇 |
2009年 | 661篇 |
2008年 | 813篇 |
2007年 | 680篇 |
2006年 | 696篇 |
2005年 | 571篇 |
2004年 | 518篇 |
2003年 | 497篇 |
2002年 | 526篇 |
2001年 | 732篇 |
2000年 | 622篇 |
1999年 | 570篇 |
1998年 | 312篇 |
1997年 | 348篇 |
1996年 | 384篇 |
1995年 | 385篇 |
1994年 | 306篇 |
1993年 | 341篇 |
1992年 | 505篇 |
1991年 | 468篇 |
1990年 | 465篇 |
1989年 | 493篇 |
1988年 | 451篇 |
1987年 | 461篇 |
1986年 | 426篇 |
1985年 | 476篇 |
1984年 | 397篇 |
1983年 | 407篇 |
1982年 | 331篇 |
1981年 | 305篇 |
1980年 | 290篇 |
1979年 | 440篇 |
1978年 | 340篇 |
1977年 | 299篇 |
1976年 | 283篇 |
1975年 | 246篇 |
1974年 | 250篇 |
1973年 | 236篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
This research analyzed a dataset of academic libraries' posts on Facebook. It applied a text and data analytics approach to a dataset collected from the Facebook posts of academic libraries at the top 100 English-speaking universities, as listed by the 2014 Shanghai World University Rankings. The dataset is from a two-year posting history of 18,333 unique posts, 113,621 likes, and 3401 comments. Less than a quarter of the libraries had more than 2000 post-related likes, and only seven received more than 100 comments on their postings. Content analysis identified the most prevalent single word (unigrams), bigrams (two-word sequences), and trigrams (three-word sequences) in high and low engagement content. Semantic analysis identified the semantic categories for posts with high and low engagement. The findings can assist academic libraries in their social media strategies for engagement, marketing, and visibility. 相似文献
102.
Analyzing 219 blog posts from 52 self-employed women lifestyle bloggers in North America, this study shows how these digital professionals navigate tensions and communicatively constitute work flexibility. In their narratives, women bloggers employed tension management approaches such as reframing, continual connections, and reflective practice in response to tensions in enacting temporal–spatial, identity, and financial flexibility. Specifically, women followed oxymoronic constructions – disciplined freedom, branded authenticity, and dependable independence – to embrace and transform competing poles of fluidity?structure, authenticity?marketability, and independence?interconnection. Expanding work–life research to the self-employed digital labor context, this study responds to recent calls to uncover more-than tension management strategies in empirical settings and contributes to a tension-centered, contextual, and processual analysis of workplace flexibility construction. 相似文献
103.
104.
105.
This paper explores the information nature of culture. It is represented as an extragenetic and nonorganizational information process and system. Information is regarded as a universal property of matter that is essentially associated with development processes and realizes various forms and ways of storage and circulation at various development stages of global evolution. The socio-cultural principle of exogenous accumulation, transmission, and transformation of information is analyzed in the context of the continuing growth of the information content of material systems on the superhighway of global-universal evolution. It is noted that the information concept of culture evolves into a new area of cultural studies, that is information and cultural studies, advancing our understanding of the nature of culture and cultural genesis. 相似文献
106.
Michael M. Widdersheim 《Library & information science research》2018,40(2):144-152
History and case study are two diachronic research strategies commonly used to study political discourse as it relates to public libraries. Though suitable for some studies, these strategies are inexhaustive. A new, blended research strategy is therefore needed to accomplish what history and case study alone cannot. This hybrid strategy, historical case study, must analyze cases from the distant past to the present, using eclectic data sources, in order to produce both idiographic and nomothetic knowledge. To develop historical case study, the universal components of diachronic analysis are first identified. A general research design for historical case study is then introduced. Finally, historical case study is tested in an actual research project. Findings from this project reveal that historical case study is a successful diachronic research strategy. Historical case study is a new and valuable research design suitable for addressing questions related to change, continuity, development, and evolution. 相似文献
107.
108.
Wondwossen M. Beyene 《Journal of Web Librarianship》2018,12(2):121-140
Digital inclusion is a strategy pursued to foster social inclusion of those who have been sidelined from the mainstream of information society due to lack of access to digital technologies and the skills to use them. Libraries have been working to close the gap by providing access to computers, the Internet, digital content, and digital literacy programs. However, research reveals a new type of divide where digitally competent people could be digitally excluded. This shows the need for a better conceptualization of access and literacy. This paper commits to exploring the concept of access to digital content from the perspective of people with print disability. It involved in-depth interviews with ten participants with print disability where the International Classification of Functioning, Disability, and Health was used as a framework for data analysis. The overall analysis shows that digital inclusion would be more meaningful if it involved providing content in alternative formats and empowering users to make informed choices. Issues such as flexibility and adaptability in content presentation and design of content discovery tools are among those discussed. 相似文献
109.
110.